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Lots of zakos to lewd. They disintegrate if you grope them enough.
According to DeepL translation, the description is: "A mini-game called "Beat the Aliens" that was up in a certain place a long time ago now. The story is that all weapons on Earth are ineffective, so you try to fight back with a newly developed special warhead. When you get hit, you inherit a bodysuit and dissolve in water."
I tried searching with the japanese words provided but all results are generic, boring real life alien stuffs and maybe sentais. The poster has an account on Pixiv that I recognize, but otherwise doesn't do communication.